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The MotoBatt line of batteries is revolutionary in that they reduced 184 OEM part numbers down to just 34 utilizing their patented QuadFlex Advanced AGM technology. MotoBatt uses more lead per battery allowing them to have higher cold cranking amps (CCA) and amp hour capacity (AH). Typically, those two numbers work inverse to each other. In other words, you would need to lower AH to increase CCA and lower CCA to increase AH, but as you can see by the chart below the MBTX9U motorcycle battery using their advanced AGM technology has managed to increase both numbers.

This Motobatt MBTX9U replacement battery comes with 4 Quadflex terminals and 1 spacer to adjust the desired height of the battery.


The MotoBatt MBTX9U QuadFlex AGM Battery Replaces These 4 Yuasa Batteries
MotoBatt SKU Ah CCA L x W x H (inches) L x W x H (mm) Total Terminals
MBTX9U 10.5 160 5.94 3.42 4.13 151 87 105 4 QuadFlex
Replaces These OEM Yuasa Part Numbers
OEM Model Ah CCA L x W x H (inches) L x W x H (mm) Spacer Height
YTX9-BS 8 120 5.94 3.42 4.13 151 87 105 5 mm 0.197"
YT12A-BS 9.5 140 5.94 3.42 4.13 151 87 105  
YTZ12S 11 170 5.94 3.42 4.33 151 87 110 Total Heght
YTZ14S 11.2 190 5.94 3.42 4.33 151 87 110 110 mm 4.33"

If you are not sure which Motobatt there is a selector at www.motobatt.com or check what battery your machine has now and enter it into our search field.


MotoBatt being a premium Absorbed Glass Mat battery is superior by design. AGM batteries have been used in demanding military and off -road applications for many years. The sealed, glass mat design has many longevity and reliability based benefits.

Each plate in the battery is wrapped in a fiberous glass matting which not only absorbs all liquid electrolyte but keeps the plates separated in a cushioned environment. This stops the plates from vibrating which can breakdown the plate and cause short circuits between the plates or break plate welds which result in battery failure. The thick, heavy plates used in MotoBatt designs really make the difference here.

AGM batteries also have a much lower inherent self discharge rate than wet flooded types. And, as a higher amp hour AGM battery, the MotoBatt battery can also discharge more deeply and recover repeatedly under vehicle alternator charge or through maintenance charging. A standard flooded cell battery is not capable of withstanding this type of cycling, without pre-mature failure.

Your Motobatt is a Factory Activated battery. It comes to you pre-conditioned and fully charged for optimum performance and ready to install out of the box. 80% of early PowerSports battery failure is caused by faulty activation of the dry battery plates. Additionally, you never have to mess with acid or top up fluid levels or remove corrosion from the terminals caused by gassing; common with standard flooded battery types.